Medical Definition of Polar lobe

1. In some molluscs a polar lobe appears as a clear protrusion close to the vegetal pole of the cell prior to the first cleavage and becomes associated with only one of the daughter cells. Removal of the first polar lobe or of any polar lobe that forms at a subsequent mitosis, leads to defects in the embryo, it seems that the polar lobe contains special morphogenetic factors. This entry appears with permission from the Dictionary of Cell and Molecular Biology (11 Mar 2008)



Polar Lobe Pictures

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Lexicographical Neighbors of Polar Lobe

polar coordinates
polar covalent bond
polar covalent bonds
polar equation
polar fibres
polar flagellation
polar fox
polar foxes
polar front
polar glacier
polar globule
polar granule
polar group
polar hare
polar ice
polar lobe (current term)
polar moment of inertia
polar mutation
polar night
polar opposite
polar opposition
polar plasm
polar plates
polar presentation
polar question
polar questions
polar ring
polar solvents
polar star
polar stratospheric cloud

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